JPS6015308Y2 - Molded internal combustion engine ignition system - Google Patents
Molded internal combustion engine ignition systemInfo
- Publication number
- JPS6015308Y2 JPS6015308Y2 JP11151781U JP11151781U JPS6015308Y2 JP S6015308 Y2 JPS6015308 Y2 JP S6015308Y2 JP 11151781 U JP11151781 U JP 11151781U JP 11151781 U JP11151781 U JP 11151781U JP S6015308 Y2 JPS6015308 Y2 JP S6015308Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed circuit
- iron core
- coil
- insulating member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
- Regulation Of General Use Transformers (AREA)
Description
【考案の詳細な説明】
本考案は、点火コイルと、該点火コイルとともに内燃機
関点火回路を構成する部品を取付けたプリント基板とを
樹脂でモールドしてなるモールド型内燃機関点火装置に
関するものである。[Detailed Description of the Invention] The present invention relates to a molded internal combustion engine ignition device in which an ignition coil and a printed circuit board on which parts constituting an internal combustion engine ignition circuit are attached together with the ignition coil are molded with resin. .
内燃機関用点火装置は耐候性を要求されるため、その主
要部を樹脂でモールドすることが行なわれている。Since ignition devices for internal combustion engines are required to be weather resistant, their main parts are molded with resin.
この種の点火装置として、点火回路を構成する回路部品
を取付けたプリント基板に孔を設けてこの孔に点火コイ
ルの鉄心を嵌合させるとともに、鉄心に設けた段部にプ
リント基板を当接させて位置決めし、点火コイルの１次
及び２次コイルとプリント基板とを鉄心の長手方向に並
べた状態で樹脂でモールドしたものがある。In this type of ignition device, a hole is provided in the printed circuit board on which the circuit components constituting the ignition circuit are mounted, and the iron core of the ignition coil is fitted into this hole, and the printed circuit board is brought into contact with a step provided on the iron core. There is one in which the primary and secondary coils of the ignition coil and a printed circuit board are arranged in the longitudinal direction of the iron core and molded with resin.
しかしながらこのような構造では段部を有する特殊な形
状の鉄心を用いるため、鉄心を他の形式の点火装置に用
いる点火コイルのものと共用することができず、コスト
が高くなる欠点があった。However, since such a structure uses a specially shaped iron core with a stepped portion, the iron core cannot be used in common with ignition coils used in other types of ignition devices, which has the disadvantage of increasing costs.
また一般に高精度の加工ができない、打抜きにより形成
した鋼板を積層してなる鉄心は、その寸法精度が悪いた
め、プリント基板の孔に鉄心を嵌合させる構造をとった
場合、鉄心とプリント基板の孔との間にガタが生じるの
を避けられず、プリント基板が確実に位置決めされない
で傾いた状態になることがあった。In addition, cores made of laminated steel plates formed by punching, which cannot generally be machined with high precision, have poor dimensional accuracy. Unavoidable looseness between the printed circuit board and the hole could result in the printed circuit board being tilted without being reliably positioned.
また従来のこの種の点火装置では、点火コイルの１次及
び２次コイルとプリント基板との間の絶縁を図るため、
点火コイルのボビンの一部をプリント基板側に延長して
その延長した部分をプリント基板に当接させることによ
り１次及び２次コイルとプリント基板との間の絶縁距離
を確保していたが、このような構造では１次コイルとプ
リント基板との間の距離が長くなり、装置が大形化する
欠点があった。In addition, in conventional ignition devices of this type, in order to achieve insulation between the primary and secondary coils of the ignition coil and the printed circuit board,
The insulation distance between the primary and secondary coils and the printed circuit board was secured by extending a part of the ignition coil's bobbin toward the printed circuit board and bringing the extended part into contact with the printed circuit board. This structure has the drawback that the distance between the primary coil and the printed circuit board becomes long, resulting in an increase in the size of the device.
更にこの従来の点火装置では、点火コイルの１次コイル
から引出されてプリント基板につながる引出線がモール
ドの際に移動して点火回路の高電圧部分に接近する虞れ
があるため、１次コイルからの引出線に絶縁チューブを
被せる必要があり、組立作業が面倒になる欠点もあった
。Furthermore, in this conventional ignition device, there is a risk that the lead wire drawn out from the primary coil of the ignition coil and connected to the printed circuit board may move during molding and come close to the high voltage part of the ignition circuit. It was necessary to cover the lead-out wire with an insulating tube, which also had the disadvantage of making assembly work troublesome.
本考案の目的は、プリント基板の位置決めを確実に行な
うことができる上に装置の小形化を図ることができ、ま
た１次コイルの引出線が移動するのを防止して該引出線
に絶縁チューブを被せる必要をなくして組立作業を容易
にしたモールド型内燃機関点火装置を提供することにあ
る。The purpose of the present invention is to be able to position the printed circuit board reliably, to downsize the device, and to prevent the lead wire of the primary coil from moving, so that an insulating tube is attached to the lead wire. To provide a molded internal combustion engine ignition device which facilitates assembly work by eliminating the need for covering.
以下図示の実施例により本考案のモールド型内燃機関点
火装置を詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The molded internal combustion engine ignition device of the present invention will be explained in detail below with reference to the illustrated embodiments.
第１図は本考案の一実施例を断面して示したもので、同
図において１は点火コイル、２は点火コイル１の１次及
び２次コイル１００の側方に配置されて点火コイルとと
もに内燃機関点火回路を構成する制御ユニット、３はコ
イル１００と制御ユニット２との間に配置された絶縁部
材である。FIG. 1 is a cross-sectional view of one embodiment of the present invention. In the figure, 1 is an ignition coil, and 2 is arranged on the side of the primary and secondary coils 100 of the ignition coil 1, and together with the ignition coil. A control unit 3 constituting the internal combustion engine ignition circuit is an insulating member disposed between the coil 100 and the control unit 2.
また４は点火コイル１の２次コイルに誘起した高電圧を
図示しない内燃機関の気筒に取付けられた点火プラグに
印加するため２次コイルの非接地側端部と点火プラグと
の間を接続する高圧コードである。Further, 4 connects the non-grounded end of the secondary coil and the spark plug in order to apply the high voltage induced in the secondary coil of the ignition coil 1 to the spark plug attached to the cylinder of the internal combustion engine (not shown). It is a high voltage cord.
５は点火コイル１、制御ユニット２及び絶縁部材３を収
納する金属製または樹脂製のケースで、ケース５内に熱
硬化性の絶縁性樹脂６が充填されて点火コイル１乃至絶
縁部材３の各部品がモールドされている。Reference numeral 5 denotes a case made of metal or resin that houses the ignition coil 1, the control unit 2, and the insulating member 3. The case 5 is filled with a thermosetting insulating resin 6, and each of the ignition coils 1 to the insulating members 3 is The parts are molded.
点火コイル１は、第２図に示した１次コイル１０１と第
３図に示した２次コイル１０２とから構成される。The ignition coil 1 is composed of a primary coil 101 shown in FIG. 2 and a secondary coil 102 shown in FIG. 3.
１次コイル１０１はＩ字形の積層鉄１０３の中央部より
一端側に片寄った位置に巻回され、鉄心１０３に嵌合さ
れた絶縁性の側板１０４．１０４が１次コイル１０１の
両端面に当接されている。The primary coil 101 is wound around an I-shaped laminated iron 103 at a position offset from the center to one end, and insulating side plates 104 and 104 fitted to the iron core 103 contact both end surfaces of the primary coil 101. being touched.
尚、１次コイル１０１を鉄心１０３に取付けた鍔付きボ
ビンに巻くこともでき、その場合はボビンの鍔が上記側
板１０４，１０４に相当する部分になる。The primary coil 101 can also be wound around a flanged bobbin attached to the iron core 103, in which case the flanges of the bobbin correspond to the side plates 104, 104 described above.
鉄心１０３の両端部付近には該鉄心を積層方向に貫通す
る取付孔１０５，１０５が設けられ、鉄心１０３の１次
コイル１０１からの突出長が長い方の部分の積層方向端
面にアース端子金具１０６がリベット等により固定され
ている。Attachment holes 105, 105 are provided near both ends of the iron core 103, passing through the core in the lamination direction, and a ground terminal fitting 106 is provided on the end surface of the portion of the iron core 103 that protrudes longer from the primary coil 101 in the lamination direction. is fixed with rivets etc.
尚、１０１ａ及び１０１ｂはそれぞれ１次コイル１０１
の巻始め端部及び巻終り端部の引出線である。Note that 101a and 101b are the primary coils 101, respectively.
These are the leader lines at the winding start end and the winding end end.
第３図に示した２次コイル１０２は１次コイル１０１を
貫通させ得る内径を有する円筒状のボビン１０７に巻回
され、ボビン１０７の軸線方向の一端の内周面にはリー
ド状の端子金具１０８がハトメやリベット等により固定
され、この端子金具１０８に２次コイル１０２の巻始め
（接地側端部）が接続されている。The secondary coil 102 shown in FIG. 3 is wound around a cylindrical bobbin 107 having an inner diameter that allows the primary coil 101 to pass through, and a lead-shaped terminal fitting is attached to the inner peripheral surface of one end in the axial direction of the bobbin 107. 108 is fixed with eyelets, rivets, etc., and the winding start (ground side end) of the secondary coil 102 is connected to this terminal fitting 108.
この２次コイル１０２のボビン１０７の内側に前記１次
コイル１０１が挿入されて点火コイル１が構成される。The primary coil 101 is inserted inside the bobbin 107 of the secondary coil 102 to form the ignition coil 1.
そしてこのように１次及び２次コイルを組合せて点火コ
イル１を構成した際に鉄心１０３に接続したアース端子
金具１０６が２次コイル１０２の端子金具１０８に丁度
型なり合って両端子金具の先端の位置が揃うようになっ
ている。When the ignition coil 1 is constructed by combining the primary and secondary coils in this way, the ground terminal fitting 106 connected to the iron core 103 is exactly aligned with the terminal fitting 108 of the secondary coil 102, and the tips of both terminal fittings are aligned. The positions are now aligned.
制御ユニット２は機関の点火位置で点火コイル１の１次
コイル１０１の電流を急変させて２次コイル１０２に高
電圧を誘起させる制御回路をプリント基板に取付けたも
ので、本実施例ではこの制御回路が、点火コイルの１次
側に設けられるコンデンサと、図示しないエキサイタコ
イルの出力を整流して該コンデンサに加えるダイオード
と、該コンデンサの電荷を１次コイル１０１に放電させ
るサイリスタとを含む回路部品により構成され、この制
御ユニット２と点火コイル１とによりコンデンサ放電式
の内燃機関点火回路が構成される。The control unit 2 has a control circuit attached to a printed circuit board that suddenly changes the current in the primary coil 101 of the ignition coil 1 at the ignition position of the engine to induce a high voltage in the secondary coil 102. A circuit component whose circuit includes a capacitor provided on the primary side of the ignition coil, a diode that rectifies the output of an exciter coil (not shown) and applies it to the capacitor, and a thyristor that discharges the charge of the capacitor to the primary coil 101. The control unit 2 and the ignition coil 1 constitute a capacitor discharge type internal combustion engine ignition circuit.
制御ユニット２の外観は第４図に示す通りで、同図にお
いて２０１は略小判形の形状を有するプリント基板であ
り、プリント基板２０１の一面にはコンデンサＣ１サイ
リスタＳＣＲ等の回路部品が取付けられている。The external appearance of the control unit 2 is as shown in FIG. 4, in which 201 is a printed circuit board having an approximately oval shape, and circuit components such as a capacitor C1 and a thyristor SCR are attached to one surface of the printed circuit board 201. There is.
プリント基板２０１の略中夫には略矩形状の窓部２０２
が形成され、該窓部２０２の矩形の一辺にはコの字状の
切欠部２０３が形成されている。A substantially rectangular window portion 202 is provided in a substantially central portion of the printed circuit board 201.
is formed, and a U-shaped notch 203 is formed on one side of the rectangle of the window portion 202.
またコンデンサＣはプリント基板２０１の一端部に、該
基板から略直角に突出するようにして配置され、プリン
ト基板２０１のコンデンサＣが配置された端部側の角部
には後記する絶縁部材の高圧コード保持部を通すための
切欠き（逃げ部）２０４が形成されている。Further, the capacitor C is arranged at one end of the printed circuit board 201 so as to protrude from the board at a substantially right angle, and at the corner of the end of the printed circuit board 201 where the capacitor C is arranged, a high voltage A notch (relief portion) 204 is formed for passing the cord holding portion.
更に、プリント基板のコンデンサＣと反対側の端部付近
には１対の孔２０５，２０５’が形成されている。Further, a pair of holes 205 and 205' are formed near the end of the printed circuit board opposite to the capacitor C.
第５図乃至第７図は絶縁部材３の構造を示したもので、
この絶縁部材は、点火コイル１の１次及び２次コイル１
００とプリント基板２０１との間に介在してコイル１０
０とプリント基板２０１との間を隔絶する板状部３０１
を備えており、この板状部３０１の中央より僅かに一端
部側に片寄った位置に鉄心１０３を貫通させる鉄心貫通
孔３０２が形成されている。5 to 7 show the structure of the insulating member 3,
This insulating member is the primary and secondary coil 1 of the ignition coil 1.
Coil 10 is interposed between 00 and printed circuit board 201.
0 and the printed circuit board 201.
An iron core through hole 302 through which the iron core 103 passes is formed at a position slightly shifted toward one end side from the center of this plate-shaped portion 301.
この鉄心貫通孔３０２の周縁部を板状部３０１の板面と
直角な方向に突出させることにより鉄心１０３を嵌合さ
せる略ダクト状の鉄心嵌合部３０３が板状部３０１と一
体に形成され、鉄心嵌合部３０３の相対する側面にはプ
リント基板２０１を突き当てる為の突起３０４゜３０４
が設けられている。A substantially duct-shaped core fitting portion 303 into which the core 103 is fitted is formed integrally with the plate portion 301 by protruding the peripheral edge of the core through hole 302 in a direction perpendicular to the plate surface of the plate portion 301. , protrusions 304° 304 for abutting the printed circuit board 201 are provided on opposing sides of the core fitting portion 303.
is provided.
鉄心嵌合部３０３の突起３０４，３０４が設けられた各
側面に対して直角な一方の側面の一部を前記プリント基
板２０１に設けられた切欠部２０３と略同−の幅寸法で
切り欠くことによりアース端子挿通孔３０５が形成され
、板状部３０１にはこの挿通孔３０５と鉄心貫通孔３０
２とに連続するコの字形の切欠部３０６が形成されてい
る。A part of one side surface perpendicular to each side surface on which the protrusions 304, 304 of the iron core fitting part 303 are provided is cut out to have approximately the same width dimension as the notch part 203 provided in the printed circuit board 201. A ground terminal insertion hole 305 is formed in the plate-shaped portion 301, and this insertion hole 305 and the iron core through hole 30 are formed in the plate-like portion 301.
A U-shaped notch 306 is formed which is continuous with the two.
前記プリント基板２の窓部２０２は、この絶縁部材のダ
クト状の鉄心嵌合部３０３を隙間なく嵌合させるように
形成され、このようにプリント基板２の窓部に絶縁部材
３の鉄心嵌合部３０３を嵌合させた際に絶縁部材３の切
欠部３０５がプリント基板の切欠部２０３に整合するよ
うになっている。The window portion 202 of the printed circuit board 2 is formed so as to fit the duct-shaped core fitting portion 303 of the insulating member without any gap. When the parts 303 are fitted together, the notch 305 of the insulating member 3 is aligned with the notch 203 of the printed circuit board.
絶縁部材３の板状部３０１の鉄心嵌合部３０３に近い側
の端部付近には鉄心嵌合部３０３と同じ側に突出してプ
リント基板２の孔２０５．２０５にそれぞれ嵌合する１
対の柱状突起３０７及び３０７′が形成され、これらの
突起の軸心部には１次コイル１０１の引出線１０１ａ及
び１０１ｂをそれぞれ挿通するための貫通孔３０９ａ及
び３０９ｂが形成されている。Near the end of the plate-like part 301 of the insulating member 3 on the side closer to the core fitting part 303, there are holes 1 that protrude on the same side as the core fitting part 303 and fit into the holes 205 and 205 of the printed circuit board 2, respectively.
A pair of columnar protrusions 307 and 307' are formed, and through holes 309a and 309b are formed at the axial center of these protrusions, through which the lead wires 101a and 101b of the primary coil 101 are inserted, respectively.
板状部３０１の鉄心嵌合部３０３から離れた端部側の角
部には有底円筒状の高圧コード保持部３１０が該絶縁板
と一体に設けられている。A bottomed cylindrical high voltage cord holding part 310 is provided integrally with the insulating plate at a corner of the plate part 301 on the end side away from the core fitting part 303.
この高圧コード保持部３１０は板状部３０１と直角な方
向に延びて鉄心嵌合部３０３の突出方向に開口するよう
に設けられ、その底部には２次コイル１の巻終りからの
引出線と高圧コード４とが接続される端子金具３１１が
固設されている。This high-voltage cord holding part 310 is provided so as to extend in a direction perpendicular to the plate-like part 301 and open in the direction in which the core fitting part 303 protrudes. A terminal fitting 311 to which the high voltage cord 4 is connected is fixedly provided.
板状部３０１の高圧コード保持部３１０と反対側の角部
には、鉄心嵌合部３０３と同じ側に突出する突出部３１
２が一体に設けられ、この突出部３１２には鉄心嵌合部
３０３と同じ側に突出する舌状の端子金具３１３の基部
が埋設されている。A protrusion 31 that protrudes to the same side as the core fitting part 303 is provided at the corner of the plate-shaped part 301 on the opposite side from the high voltage cord holding part 310.
2 are integrally provided, and the base of a tongue-shaped terminal fitting 313 that protrudes on the same side as the core fitting portion 303 is buried in this protrusion 312 .
この端子金具３１３には図示しないエキサイタコイルの
出力端子金具が接続される。An output terminal fitting of an exciter coil (not shown) is connected to this terminal fitting 313.
板状部３０１の端部の高圧コード保持部３１０と端子金
具３１３との間に位置する部分には、鉄心嵌合部３０３
と反対側に該板状部３０１と直角に突出するコンデンサ
保持部３１５が該板状部３０１と一体に設けられている
。A core fitting portion 303 is located at the end of the plate portion 301 between the high voltage cord holding portion 310 and the terminal fitting 313.
On the opposite side, a capacitor holding part 315 is provided integrally with the plate part 301 and protrudes perpendicularly to the plate part 301.
このコンデンサ保持部３１５はプリント基板２０１に取
付けられたコンデンサＣの一生面を支える平板部３１６
と、この平板部３１６の幅方向の両端から立上った略三
ケ月形の断面形状を有する側壁部３１７，３１７と、平
板部３１６の板状部３０１から離れた端部から立上る端
部壁３１８とからなっている。This capacitor holding part 315 has a flat plate part 316 that supports the entire surface of the capacitor C attached to the printed circuit board 201.
and side wall portions 317, 317 having a substantially crescent-shaped cross-sectional shape rising from both ends of the flat plate portion 316 in the width direction, and an end wall rising from the end of the flat plate portion 316 remote from the plate-like portion 301. It consists of 318.
コンデンサ保持部３１５の側壁部３１７．３１７間の間
隔はコンデンサＣの幅寸法よりやや小さ目に設定されて
おり、両側壁部３１７．３１７間にコンデンサＣを挿入
した際に両側壁部の弾性によりコンデンサＣが抱持され
るようになっている。The interval between the side walls 317 and 317 of the capacitor holding part 315 is set to be slightly smaller than the width dimension of the capacitor C, so that when the capacitor C is inserted between the both side walls 317 and 317, the elasticity of the both side walls allows the capacitor to C is now being held.
板状部３０１の周辺部には、この：絶縁部材３をケース
５内に挿入した際にケース５の内面に当接して絶縁部材
３を位置決め突起３１９が適宜の個数（図示の例では４
個）設けられている。On the periphery of the plate-shaped portion 301, there are an appropriate number of protrusions 319 (in the illustrated example, 4 protrusions 319) that abut the inner surface of the case 5 to position the insulating member 3 when the insulating member 3 is inserted into the case 5.
) provided.
本実施例の点火装置を組立てるには先ず第２図に示すよ
・うに１次コイル１０１を巻回した鉄心１０３を、アー
ス端子金具１０５が切欠部３０６を通る向きにして絶縁
部材３の鉄心嵌合部３０３内に挿入し、同時に１次コイ
ル１０１の引出線１０ｉａ、１０ｍｂを突起３０７及び
３０７′の貫通孔３０９ａ及び３０９ｂにそれぞれ挿入
する。To assemble the ignition device of this embodiment, first, as shown in FIG. At the same time, the lead wires 10ia and 10mb of the primary coil 101 are inserted into the through holes 309a and 309b of the protrusions 307 and 307', respectively.
この状態で１次コイルの側板１０４が絶縁部材３の板状
部３０１に当接するまで鉄心１０３を鉄心嵌合部３０３
に押し込む。In this state, the core 103 is inserted into the core fitting portion 303 until the side plate 104 of the primary coil comes into contact with the plate-like portion 301 of the insulating member 3.
Push it into.
次に１次コイル１０１の外周に２次コイル１０２を嵌合
させ、２次コイル１０２の一端面を絶縁部材の板状部３
０１に当接させる。Next, the secondary coil 102 is fitted around the outer periphery of the primary coil 101, and one end surface of the secondary coil 102 is connected to the plate-like part 3 of the insulating member.
01.
この場合、２次コイル１０２の端子金具１０８は上記１
次コイルのアース端子金具１０６とともに切欠部３０６
内を貫通させておく。In this case, the terminal fitting 108 of the secondary coil 102 is
Notch 306 along with ground terminal fitting 106 of the next coil
Let it penetrate inside.
次に点火コイルの１次及び２次コイルと反対側に、制御
ユニット２をその回路部品が取付けられた表面を絶縁部
材３側に向けて配置して鉄心１０３をプリント基板２０
１の窓部２０２内に挿入し、絶縁部材３の鉄心嵌合部３
０３を窓部２０２に嵌合させると同時に突起３０７，３
０７’を孔２０５゜２０５′に嵌合させる。Next, the control unit 2 is placed on the side opposite to the primary and secondary coils of the ignition coil, with the surface on which its circuit components are attached facing the insulating member 3 side, and the iron core 103 is attached to the printed circuit board 20.
1 into the window 202 of the insulating member 3, and the core fitting part 3 of the insulating member 3.
03 into the window part 202, and at the same time the protrusions 307, 3
07' is fitted into the hole 205°205'.
このとき、プリント基板２０１は、突起３０４，３０４
に当接して鉄心の長手方向に対して位置決めされる。At this time, the printed circuit board 201 has the protrusions 304, 304
It is positioned in the longitudinal direction of the iron core by abutting on it.
またこのようにプリント基板を組付ける際にコンデンサ
Ｃをコンデンサ保持部３１５に挿入して保持させる。Further, when assembling the printed circuit board in this manner, the capacitor C is inserted into the capacitor holding portion 315 and held therein.
このようにプリント基板を組付けた状態では、プリント
基板の切欠部２０３が絶縁部材の切欠部３０６に整合し
、鉄心１０３のアース端子金具１０６及び２次コイル１
０２の端子金具１０８が切欠部３０６及び２０３を貫通
してプリント基板２０１の裏面側に突出する。With the printed circuit board assembled in this manner, the notch 203 of the printed circuit board is aligned with the notch 306 of the insulating member, and the ground terminal fitting 106 of the iron core 103 and the secondary coil 1
The terminal fitting 108 of No. 02 penetrates through the notches 306 and 203 and protrudes to the back side of the printed circuit board 201.
また端子金具３１３はプリント基板２０１の側方に位置
する。Further, the terminal fitting 313 is located on the side of the printed circuit board 201.
プリント基板２０１の裏面の、端子金具１０６及び１０
８の近傍の位置には接地電位に保たれる導電層が形成さ
れ、この導電層（接地電位部）側に端子金具１０６及び
１０８が折曲げられて両端子金具が導電層に半田付けさ
れる。Terminal fittings 106 and 10 on the back side of the printed circuit board 201
A conductive layer maintained at a ground potential is formed near 8, terminal fittings 106 and 108 are bent toward this conductive layer (ground potential portion), and both terminal fittings are soldered to the conductive layer. .
絶縁部材３の突起３０７，３０７′の中心の貫通孔３０
９ａ、３０９ｂを貫通して導出された１次コイル１０１
の引出線１０１ａ、１０１ｂはプリント基板２０１の裏
面に設けられた所定のプリント配線部に半田付けされる
。Through hole 30 at the center of protrusions 307, 307' of insulating member 3
Primary coil 101 led out by penetrating through 9a and 309b
The lead wires 101a and 101b are soldered to predetermined printed wiring sections provided on the back surface of the printed circuit board 201.
また端子金具３１３もリード線（図示せず。Further, the terminal fitting 313 also has a lead wire (not shown).
）によりプリント基板上の所定のプリント配線部に接続
される。) is connected to a predetermined printed wiring section on the printed circuit board.
以上により点火コイル１、制御ユニット２及び絶縁部材
３が一体化される。As described above, the ignition coil 1, control unit 2, and insulating member 3 are integrated.
上記実施例のように絶縁部材３にダクト状の鉄心嵌合部
を設けると、該嵌合部が鉄心に広い面で接触して嵌合す
るので、鉄心の寸法精度が悪くても絶縁部材３を鉄心に
対して大きく傾斜させることなく安定に位置決めするこ
とができる。When the insulating member 3 is provided with a duct-shaped iron core fitting part as in the above embodiment, the fitting part comes into contact with the iron core on a wide surface and is fitted, so even if the dimensional accuracy of the iron core is poor, the insulating member 3 can be stably positioned without greatly tilting the iron core.
また絶縁部材３の鉄心嵌合部３０３の寸法精度及びプリ
ント基板２０１の窓部２０２の寸法精度は十分高くする
ことができるため、プリント基板の窓部２０２に絶縁部
材の鉄心嵌合部を嵌合させる構造にするとプリント基板
２０１を絶縁部材３に対して確実に位置決めすることが
できる。In addition, since the dimensional accuracy of the core fitting portion 303 of the insulating member 3 and the dimensional accuracy of the window portion 202 of the printed circuit board 201 can be made sufficiently high, the core fitting portion of the insulating member is fitted to the window portion 202 of the printed circuit board. With this structure, the printed circuit board 201 can be reliably positioned with respect to the insulating member 3.
更に、本実施例のように、コンデンサＣをコンデンサ保
持部３１５に保持させ、絶縁部材を貫通させた端子金具
１０６及び１０８をプリント基板に半田付けする構造に
すると、絶縁部材とプリント基板とを機械的に強固に結
合できるため、モールド時にこれが移動するのを確実に
防ぐことができる。Furthermore, if the structure is such that the capacitor C is held in the capacitor holding part 315 and the terminal fittings 106 and 108 that pass through the insulating member are soldered to the printed circuit board as in this embodiment, the insulating member and the printed board can be easily connected by a machine. Since it can be firmly bonded, it can reliably prevent it from moving during molding.
上記のように各部を組立てた後２次コイル１０２の巻終
りと高圧コード用の端子金具３１１とを接続する。After assembling each part as described above, the end of the winding of the secondary coil 102 and the terminal fitting 311 for the high voltage cord are connected.
本実施例では、２次コイル１０２の外周に銅箔等からな
る端子板１０９が配置されてこの端子板に２次コイル１
′０２の巻終りが半田付けされ、端子板１０９はその一
部が露出するようにして絶縁テープにより２次コイル１
０２に固定されている。In this embodiment, a terminal plate 109 made of copper foil or the like is arranged around the outer periphery of the secondary coil 102, and the secondary coil 109 is placed on this terminal plate.
The end of the winding '02 is soldered, and the terminal plate 109 is connected to the secondary coil 1 with insulating tape so that a part of it is exposed.
It is fixed at 02.
そして端子板１０９に細いリード線７の一端が半田付け
され、リード線７の他端が端子金具３１１に半田付けさ
れている。One end of the thin lead wire 7 is soldered to the terminal plate 109, and the other end of the lead wire 7 is soldered to the terminal fitting 311.
上記のようにして組立てられた組立体はケース６内に挿
入され、鉄心１０３の一端がケース６の底部の孔６０１
に嵌合される。The assembly assembled as described above is inserted into the case 6, and one end of the iron core 103 is inserted into the hole 601 at the bottom of the case 6.
mated to.
このとき絶縁部材３の位置決め突起３１９，３１９．・
・・がケース６の内面に当接して組立体を位置決めする
。At this time, the positioning projections 319, 319 of the insulating member 3.・
... comes into contact with the inner surface of the case 6 to position the assembly.
その後ケース６内に熱硬化性の絶縁樹脂６の液を注入し
て加熱硬化させ、モールド型内燃機関点火装置を完成す
る。Thereafter, a thermosetting insulating resin 6 liquid is injected into the case 6 and cured by heating, thereby completing a molded internal combustion engine ignition device.
完成後高圧コード保持部３１０に高圧コード４が圧入さ
れて高圧コードの心線に端子金具３１１が接続される。After completion, the high voltage cord 4 is press-fitted into the high voltage cord holding portion 310, and the terminal fitting 311 is connected to the core wire of the high voltage cord.
尚上記実施例では、ケース６に樹脂を注入して硬化させ
ることによりモールドしているが、本考案はこのような
注型方式による場合に限定されるものではなく、ケース
６を用いずにインジェクションモールドによりコイル１
００、絶縁部材３及び制御ユニット２をモールドするよ
うにしてもよい。In the above embodiment, the resin is injected into the case 6 and molded by curing. However, the present invention is not limited to such a casting method, and it is possible to perform injection molding without using the case 6. Coil 1 by mold
00, the insulating member 3 and the control unit 2 may be molded.
本考案においては、絶縁部材３及び制御コニット２が鉄
心に対して強固に位置決めされているので、インジェク
ションモールド時の射出圧にも十分耐えることができる
。In the present invention, since the insulating member 3 and the control unit 2 are firmly positioned relative to the iron core, they can sufficiently withstand the injection pressure during injection molding.
特に上記実施例では１次コイルの引出線が突起３０７，
３０７’内を貫通して導出されるため射出圧によりこれ
らの引出線が移動する虞れがなく、画引出線の断線や高
電圧部への接触事故を確実に無くすことができる。In particular, in the above embodiment, the lead wire of the primary coil is the protrusion 307,
Since the drawing wires are led out by penetrating through the inside of 307', there is no risk of these drawing wires moving due to injection pressure, and it is possible to reliably eliminate breakage of drawing drawing wires and accidents of contact with high voltage parts.
上記の実施例では絶縁部材の板状部３０１及びプリント
基板２０１にそれぞれ切欠部３０６及び２０３を設けて
、これらの切欠部を通して端子金具１０６及び１０８を
プリント基板の接地電位部側に突出させるようにしたが
、これらの端子金具の導出構造は任意である。In the above embodiment, notches 306 and 203 are provided in the plate-shaped portion 301 of the insulating member and the printed circuit board 201, respectively, and the terminal fittings 106 and 108 are made to protrude to the ground potential side of the printed circuit board through these notches. However, the lead-out structure of these terminal fittings is arbitrary.
例えば絶縁部材の板状部３０１に設ける鉄心貫通孔３０
２の一方向への幅寸法を鉄心１０３の幅寸法より大きく
して鉄心貫通孔３０２と鉄心１０３との間に端子金具１
０６．１０８を通すために必要な間隙が形成されるよう
にし、同様にプリント基板の窓部２０２の一方向への幅
寸法を鉄心嵌合部３０３の幅寸法より大きくして、鉄心
嵌合部３０３と窓部２０２との間に端子金具１０６，１
０８を通すための間隙が形成されるようにしてもよい。For example, an iron core through hole 30 provided in a plate-like portion 301 of an insulating member
The terminal fitting 1 is installed between the core through hole 302 and the core 103 by making the width dimension in one direction of 2 larger than the width dimension of the core 103.
06.108 is formed, and similarly, the width dimension in one direction of the window part 202 of the printed circuit board is made larger than the width dimension of the core fitting part 303, and the core fitting part Terminal fitting 106,1 is installed between 303 and window 202.
A gap may be formed for passing 08.
また端子金具１０６．１０８がそれぞれ、絶縁部材３及
びプリント基板２０１の異なる個所を貫通してプリント
基板の接地電位部近傍に突出するようにしてもよい。Further, the terminal fittings 106 and 108 may each penetrate different parts of the insulating member 3 and the printed circuit board 201 and protrude near the ground potential portion of the printed circuit board.
尚上記の例では、コンデンサ放電式の点火回路を用いる
としたが、電流しゃ断式等他の形式の点火回路を用いる
場合にも同様に本考案を適用できるのは勿論であり、大
形のコンデンサを用いない場合には絶縁部材のコンデン
サ保持部を省略することができる。In the above example, a capacitor discharge type ignition circuit is used, but it goes without saying that the present invention can be similarly applied when using other types of ignition circuits such as a current cutoff type. If not used, the capacitor holding part of the insulating member can be omitted.
以上のように、本考案によれば、点火コイルの１次及び
２次コイルと制御ユニットのプリント基板との間に絶縁
部材の板状部を介在させたので１次及び２次コイルと制
御ユニットとの間の距離を短くすることができ、装置の
小形化を図ることができる。As described above, according to the present invention, since the plate-shaped portion of the insulating member is interposed between the primary and secondary coils of the ignition coil and the printed circuit board of the control unit, the primary and secondary coils and the control unit The distance between the two can be shortened, and the device can be made more compact.
また絶縁部材のダクト状の鉄心嵌合部に鉄心を嵌合させ
て絶縁部材を鉄心に安定に保持するとともに、この絶縁
部材の鉄心嵌合部をプリント基板の窓部に嵌合させてプ
リント基板を位置決めし、更に絶縁部材に設けた突起を
プリント基板の孔に嵌合させるようにしたので、点火コ
イルと絶縁部材と制御ユニットとを相互に強固に結合す
ることができ、モールド時に各部が移動するのを防ぐこ
とができる。In addition, the iron core is fitted into the duct-shaped iron core fitting part of the insulating member to stably hold the insulating member to the iron core, and the iron core fitting part of the insulating member is fitted into the window part of the printed circuit board to securely hold the insulating member to the iron core. In addition, the protrusions provided on the insulating member are fitted into the holes in the printed circuit board, so the ignition coil, insulating member, and control unit can be firmly connected to each other, and each part will not move during molding. You can prevent it from happening.
特に本考案においては点火コイルの１次コイルの引出線
を絶縁部材の突起に設けた貫通孔に挿入してプリント基
板側に案内するようにしたので、モールド時に１次コイ
ルの引出線が移動することがない。In particular, in this invention, the lead wire of the primary coil of the ignition coil is inserted into a through hole provided in the protrusion of the insulating member and guided to the printed circuit board side, so the lead wire of the primary coil does not move during molding. Never.
したがって部品相互の接触や断線事故を防いで製品の歩
留りを向上させることができる。Therefore, it is possible to prevent parts from coming into contact with each other and from disconnection accidents, thereby improving product yield.
また１次コイルの引出線に絶縁チューブを被せる作業が
不要になるので組立作業を簡単にすることができる。Furthermore, since there is no need to cover the lead wire of the primary coil with an insulating tube, assembly work can be simplified.
第１図乃至第７図は本考案の一実施例を示したもので、
第１図は全体の断面図、第２図は点火コイルの１次コイ
ルと鉄心を示す正面図、第３図は点火コイルの２次コイ
ルを示す断面図、第４図は制御ユニットの斜視図、第５
図乃至第７図はそれぞれ絶縁部材の正面図、右側面図及
び背面図である。
１・・・・・・点火コイル、１０１・・・・・・１次コ
イル、１０２・・・・・・２次コイル、１０３・・・・
・・鉄心、１０６゜１０８・・・・・・端子金具、２・
・・・・・制御ユニット、３・・・・・・絶縁部材、３
０１・・・・・・板状部、３０２・・・・・・鉄心貫通
孔、３０３・・・・・・鉄心嵌合部、３１５・・・・・
・コンデンサ保持部、Ｃ・・・・・・コンデンサ。Figures 1 to 7 show an embodiment of the present invention.
Fig. 1 is an overall sectional view, Fig. 2 is a front view showing the primary coil and core of the ignition coil, Fig. 3 is a sectional view showing the secondary coil of the ignition coil, and Fig. 4 is a perspective view of the control unit. , 5th
7 to 7 are a front view, a right side view, and a rear view of the insulating member, respectively. 1...Ignition coil, 101...Primary coil, 102...Secondary coil, 103...
... Iron core, 106°108 ... Terminal fitting, 2.
... Control unit, 3 ... Insulating member, 3
01... Plate-shaped part, 302... Core through hole, 303... Core fitting part, 315...
・Capacitor holding part, C...Capacitor.
Claims (1)
、板面が前記鉄心の長手方向と略直交する向きにして前
記１次コイル及び２次コイルの側方に配置されたプリン
ト基板に前記点火コイルとともに内燃機関点火回路を構
成する部品を取付けてなる制御ユニットとを樹脂でモー
ルドしてなるモールド型内燃機関点火装置において、前
記１次及び２次コイルと前記プリント基板との間に介在
する板状部と前記鉄心が嵌合する略ダクト状の鉄心嵌合
部と中心に貫通孔を有し前記プリント基板側に突出する
突起とを一体に有する絶縁部材が設けられ、前記プリン
ト基板は前記鉄心が嵌合された前記絶縁部材の鉄心嵌合
部を貫通させる窓部と前記突起を貫通させる孔とを有し
、前記１次コイルから引出された導線が前記突起の中心
の貫通孔を通して導出されていることを特徴とするモー
ルド型内燃機関点火装置。An ignition coil formed by winding a primary and secondary coil around an iron core, and a printed circuit board disposed on the side of the primary coil and secondary coil with the plate surface oriented substantially perpendicular to the longitudinal direction of the iron core. In the molded internal combustion engine ignition device, a control unit in which parts constituting an internal combustion engine ignition circuit are attached together with the ignition coil is molded with resin, between the primary and secondary coils and the printed circuit board. An insulating member is provided which integrally includes an intervening plate-shaped portion, a substantially duct-shaped iron core fitting portion into which the iron core fits, and a protrusion having a through hole in the center and protruding toward the printed circuit board. has a window portion through which the iron core fitting portion of the insulating member into which the iron core is fitted passes through, and a hole through which the protrusion passes, and a conductor drawn out from the primary coil passes through the through hole at the center of the protrusion. A molded internal combustion engine ignition device, characterized in that it is led out through a molded internal combustion engine ignition device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11151781U JPS6015308Y2 (en) | 1981-07-29 | 1981-07-29 | Molded internal combustion engine ignition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11151781U JPS6015308Y2 (en) | 1981-07-29 | 1981-07-29 | Molded internal combustion engine ignition system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5818327U JPS5818327U (en) | 1983-02-04 |
| JPS6015308Y2 true JPS6015308Y2 (en) | 1985-05-14 |
Family
ID=29905850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11151781U Expired JPS6015308Y2 (en) | 1981-07-29 | 1981-07-29 | Molded internal combustion engine ignition system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6015308Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0441254Y2 (en) * | 1986-07-17 | 1992-09-28 |
-
1981
- 1981-07-29 JP JP11151781U patent/JPS6015308Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5818327U (en) | 1983-02-04 |
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